Rx 480 freeze at idle, sleep mode.

So Can anyone give a clear answer? Bought an Rx 480 xfx GTR yesterday... I Get random Freeze and sleep mode (on Idle) after the pc was shut down for long time (like at night 8 hours). Is that AMD Drivers fault or just some gpu's are factory problematic? If anyone knows please tell me... Should I DOA my card????

It has nothing to do with the system, Also dont ask me if i did DDU on my old Drivers.. Had a 7850 Asus Direct cu II before no problems at all.. My bios version is the latest... Dont tell me anything like try to reinstall drivers safe mode or etc... I know there is a big issue with RX480 series..